# FAQ **URL:** https://forum.dynamobim.com/c/faq/8.md [Latest](https://forum.dynamobim.com/latest.md) · [Categories](https://forum.dynamobim.com/categories.md) · [Tags](https://forum.dynamobim.com/tags.md) --- ## [About the FAQ category](https://forum.dynamobim.com/t/about-the-faq-category/4037)
**Author:** [@system](https://forum.dynamobim.com/u/system)\ **Replies:** 0\ **Last updated:** [May 18, 2016, 1:17pm UTC](https://forum.dynamobim.com/t/about-the-faq-category/4037 "2016-05-18T13:17:00Z")
High level questions around general entrypoints to Dynamo Can I use Dynamo for (insert area of interest)? Why shouldn't I just write some code? Where can I find marketing material/documentation/etc? --- ## [Welcome to the Dynamo Forum](https://forum.dynamobim.com/t/welcome-to-the-dynamo-forum/8)
**Author:** [@system](https://forum.dynamobim.com/u/system)\ **Replies:** 19\ **Last updated:** [June 3, 2017, 6:13am UTC](https://forum.dynamobim.com/t/welcome-to-the-dynamo-forum/8 "2017-06-03T06:13:14Z")
Welcome to the new and improved Dynamo Forum! Please make yourself at home and feel free to ask/answer questions about Dynamo, the general purpose graphical algorithm editor for designers, architects, artists, and engin… --- ## [Beginner Looking for a Revit API Learning Roadmap](https://forum.dynamobim.com/t/beginner-looking-for-a-revit-api-learning-roadmap/115028)
**Author:** [@105210287](https://forum.dynamobim.com/u/105210287)\ **Replies:** 12\ **Last updated:** [August 7, 2026, 4:38pm UTC](https://forum.dynamobim.com/t/beginner-looking-for-a-revit-api-learning-roadmap/115028 "2026-08-07T16:38:32Z")
Hi everyone, I’m hoping to start learning the Revit API, but I’m honestly not sure where to begin. There are so many resources available that it’s a bit overwhelming. I have a background in BIM and use Revit and Dynamo… --- ## [Related to linking Excel data in Dynamo](https://forum.dynamobim.com/t/related-to-linking-excel-data-in-dynamo/113993)
**Author:** [@Minami](https://forum.dynamobim.com/u/Minami)\ **Replies:** 3\ **Last updated:** [March 2, 2026, 10:10am UTC](https://forum.dynamobim.com/t/related-to-linking-excel-data-in-dynamo/113993 "2026-03-02T10:10:27Z")
I frequently use Dynamo (Revit and Civil3D) in my work. There are two issues that I often encounter, but I am not sure about the causes. After finishing my work, even though I have closed all applications such as Revit… --- ## [Help! Why am i getting this on the dynamo home screen? TIA](https://forum.dynamobim.com/t/help-why-am-i-getting-this-on-the-dynamo-home-screen-tia/113710)
**Author:** [@ketki8XT3L](https://forum.dynamobim.com/u/ketki8XT3L)\ **Replies:** 3\ **Last updated:** [January 22, 2026, 1:35pm UTC](https://forum.dynamobim.com/t/help-why-am-i-getting-this-on-the-dynamo-home-screen-tia/113710 "2026-01-22T13:35:56Z")
--- ## [How to get execution time on dynamo](https://forum.dynamobim.com/t/how-to-get-execution-time-on-dynamo/61926)
**Author:** [@REH](https://forum.dynamobim.com/u/REH)\ **Replies:** 6\ **Last updated:** [October 18, 2025, 3:46am UTC](https://forum.dynamobim.com/t/how-to-get-execution-time-on-dynamo/61926 "2025-10-18T03:46:31Z")
Hi Can you help me to find how to get the execution time of a dynamo script ? My script dynamo write to excel the quantity of all element in my revit model Thank you --- ## [Insert xref with Camber but keep existing xrefs](https://forum.dynamobim.com/t/insert-xref-with-camber-but-keep-existing-xrefs/112292)
**Author:** [@vincentvd](https://forum.dynamobim.com/u/vincentvd)\ **Replies:** 4\ **Last updated:** [September 10, 2025, 10:53am UTC](https://forum.dynamobim.com/t/insert-xref-with-camber-but-keep-existing-xrefs/112292 "2025-09-10T10:53:49Z")
I am trying to make a script that adds an xref to a autocad/civil3d drawing. I got it working with the Camber package however when I add a second xref, the first xref (added by the script) is removed. Apparently, the sc… --- ## [CableTray.ByLines output NULL](https://forum.dynamobim.com/t/cabletray-bylines-output-null/111767)
**Author:** [@bbkk5401](https://forum.dynamobim.com/u/bbkk5401)\ **Replies:** 9\ **Last updated:** [August 8, 2025, 3:40am UTC](https://forum.dynamobim.com/t/cabletray-bylines-output-null/111767 "2025-08-08T03:40:40Z")
Hello everyone, I just started using Revit recently. I am trying to create a script to generate cable trays next to existing ones, but in the end, CableTray.ByLines returns null. I searched online for other methods, but … --- ## [Where are DynamoAPI Docs?](https://forum.dynamobim.com/t/where-are-dynamoapi-docs/54432)
**Author:** [@jean](https://forum.dynamobim.com/u/jean)\ **Replies:** 8\ **Last updated:** [June 26, 2025, 8:30am UTC](https://forum.dynamobim.com/t/where-are-dynamoapi-docs/54432 "2025-06-26T08:30:17Z")
Hello mates, are DynamoAPI docs pages moved? or can provide a link to refer? @solamour @Michael\_Kirschner2 Thanks. --- ## [I've tried a lot of methods, but my battery pack still shows a null value, so I can only ask for help from the forum to provide some ideas](https://forum.dynamobim.com/t/ive-tried-a-lot-of-methods-but-my-battery-pack-still-shows-a-null-value-so-i-can-only-ask-for-help-from-the-forum-to-provide-some-ideas/109624)
**Author:** [@2530191614](https://forum.dynamobim.com/u/2530191614)\ **Replies:** 2\ **Last updated:** [April 22, 2025, 8:45pm UTC](https://forum.dynamobim.com/t/ive-tried-a-lot-of-methods-but-my-battery-pack-still-shows-a-null-value-so-i-can-only-ask-for-help-from-the-forum-to-provide-some-ideas/109624 "2025-04-22T20:45:24Z")
--- ## [Family Parameter order](https://forum.dynamobim.com/t/family-parameter-order/20071)
**Author:** [@3Pinter](https://forum.dynamobim.com/u/3Pinter)\ **Replies:** 4\ **Last updated:** [March 20, 2025, 6:10am UTC](https://forum.dynamobim.com/t/family-parameter-order/20071 "2025-03-20T06:10:12Z")
I was wondering: is there a way we can change the order of the parameters shown in the familytype-dialogbox using dynamo? The order can be random, asc, desc, custom (with clicking them upward/downward) So Family Type \> … --- ## [Is Autodesk copying every dynamo script we make?](https://forum.dynamobim.com/t/is-autodesk-copying-every-dynamo-script-we-make/108513)
**Author:** [@sniken](https://forum.dynamobim.com/u/sniken)\ **Replies:** 4\ **Last updated:** [March 5, 2025, 5:32pm UTC](https://forum.dynamobim.com/t/is-autodesk-copying-every-dynamo-script-we-make/108513 "2025-03-05T17:32:02Z")
Revit is apparently capable of tracking everything your mouse does, as it can inform you what and where you clicked; and offer suggestions based on that. I know there are “opt-out” buttons, but also dynamo states quite … --- ## [DynamoPrimer language?](https://forum.dynamobim.com/t/dynamoprimer-language/106640)
**Author:** [@christian.stan](https://forum.dynamobim.com/u/christian.stan)\ **Replies:** 1\ **Last updated:** [December 17, 2024, 2:53pm UTC](https://forum.dynamobim.com/t/dynamoprimer-language/106640 "2024-12-17T14:53:09Z")
hi, there seems to be a problem if we use a different language for information it could come from me, it’s very possible Sincerely christian.stan --- ## [TextNote.ByLocation Position Error](https://forum.dynamobim.com/t/textnote-bylocation-position-error/100492)
**Author:** [@carloscampos](https://forum.dynamobim.com/u/carloscampos)\ **Replies:** 8\ **Last updated:** [December 16, 2024, 12:57pm UTC](https://forum.dynamobim.com/t/textnote-bylocation-position-error/100492 "2024-12-16T12:57:25Z")
Hello everyone, Trying to place text (around 700 different entities) within a view through an excel doc that has x & y coordinates. My whole script is working other than the placement of the actual text and certain loca… --- ## [Where did the formula node go?](https://forum.dynamobim.com/t/where-did-the-formula-node-go/101417)
**Author:** [@Salman-2550](https://forum.dynamobim.com/u/Salman-2550)\ **Replies:** 14\ **Last updated:** [November 7, 2024, 6:47pm UTC](https://forum.dynamobim.com/t/where-did-the-formula-node-go/101417 "2024-11-07T18:47:02Z")
Hello! I was watching a tutorial on YouTube about Dynamo where the person was using Formula node which surprisingly I couldn’t find on my Dynamo He was using a bit older ver --- ## [Dynamo Package Management](https://forum.dynamobim.com/t/dynamo-package-management/102010)
**Author:** [@emrullah.yildiz](https://forum.dynamobim.com/u/emrullah.yildiz)\ **Replies:** 27\ **Last updated:** [October 13, 2024, 4:49pm UTC](https://forum.dynamobim.com/t/dynamo-package-management/102010 "2024-10-13T16:49:21Z")
The Dynamo team cares deeply about you finding success with your workflows and not being frustrated with changes, so we are here to help with the transition of Dynamo’s underlying technology from .NET4.8 to .NET8.0. But… --- ## [\[Feature Request\] Freeze multiple nodes in one click?](https://forum.dynamobim.com/t/feature-request-freeze-multiple-nodes-in-one-click/58920)
**Author:** [@Xiaofei\_Ying](https://forum.dynamobim.com/u/Xiaofei_Ying)\ **Replies:** 10\ **Last updated:** [September 9, 2024, 6:01am UTC](https://forum.dynamobim.com/t/feature-request-freeze-multiple-nodes-in-one-click/58920 "2024-09-09T06:01:23Z")
I have to freeze multiple nodes one by one. Is it possible to select multiple nodes then freeze them in one click? --- ## [Locating the log file](https://forum.dynamobim.com/t/locating-the-log-file/39048)
**Author:** [@Misha](https://forum.dynamobim.com/u/Misha)\ **Replies:** 5\ **Last updated:** [August 19, 2024, 10:01am UTC](https://forum.dynamobim.com/t/locating-the-log-file/39048 "2024-08-19T10:01:49Z")
Hi guys, A very simple question, yet I could not find an existing answer on this forum. Where is the Dynamo log file and how can I view it? Thanks, --- ## [A dynamo file opens as a blank](https://forum.dynamobim.com/t/a-dynamo-file-opens-as-a-blank/77500)
**Author:** [@h0905M4232](https://forum.dynamobim.com/u/h0905M4232)\ **Replies:** 5\ **Last updated:** [July 8, 2024, 3:44am UTC](https://forum.dynamobim.com/t/a-dynamo-file-opens-as-a-blank/77500 "2024-07-08T03:44:11Z")
I use Dynamo program in Civil3D, but recently one of my dyn data doesn’t open. When I try to open the file, a “Home” window opens without any error masseges. What should I do? Any idea? --- ## [Surface is not generated when connecting from Dynamo\_NurbsCurve.ByContralPoints to Surface.ByLoft](https://forum.dynamobim.com/t/surface-is-not-generated-when-connecting-from-dynamo-nurbscurve-bycontralpoints-to-surface-byloft/102300)
**Author:** [@Azu](https://forum.dynamobim.com/u/Azu)\ **Replies:** 2\ **Last updated:** [June 29, 2024, 2:53am UTC](https://forum.dynamobim.com/t/surface-is-not-generated-when-connecting-from-dynamo-nurbscurve-bycontralpoints-to-surface-byloft/102300 "2024-06-29T02:53:43Z")
Translated by moderator. Original post below the line. I am learning Dynamo using this site as a reference. ・Revit Peeler: ダイナモ白熱教室(5)～点 ・Revit Peeler: ダイナモ白熱教室(6)～Cos ・Revit Peeler: ダイナモ白熱教室(7)～点-線-面 I would li… --- ## [How to remove duplicates created from if statements being false](https://forum.dynamobim.com/t/how-to-remove-duplicates-created-from-if-statements-being-false/102291)
**Author:** [@RV\_13](https://forum.dynamobim.com/u/RV_13)\ **Replies:** 2\ **Last updated:** [June 28, 2024, 10:25am UTC](https://forum.dynamobim.com/t/how-to-remove-duplicates-created-from-if-statements-being-false/102291 "2024-06-28T10:25:24Z")
Hello everyone. I’m in the process of creating digital twins and running into a problem. This is what I’ve done until now: Started by selecting the pretended element; Got the family, the family type and then all the in… --- ## [Revit- MySQL link](https://forum.dynamobim.com/t/revit-mysql-link/8272)
**Author:** [@MOJTABA256](https://forum.dynamobim.com/u/MOJTABA256)\ **Replies:** 19\ **Last updated:** [June 26, 2024, 7:07pm UTC](https://forum.dynamobim.com/t/revit-mysql-link/8272 "2024-06-26T19:07:02Z")
Hi dear friends I am going to integrate Revit into structural health monitoring sensors data capturing, storage and visualization. For this purpose, I modeled a building in Revit with several hypothetical sensors such … --- ## [Project Matrix Creation](https://forum.dynamobim.com/t/project-matrix-creation/102098)
**Author:** [@keysss](https://forum.dynamobim.com/u/keysss)\ **Replies:** 3\ **Last updated:** [June 21, 2024, 6:53pm UTC](https://forum.dynamobim.com/t/project-matrix-creation/102098 "2024-06-21T18:53:47Z")
I’m stuck on this script and honestly not sure if I’m even off to the right start. The goal is to create a Project Matrix sheet that shows the total values of all units on each floor and show the sum of the total values … --- ## [Ask for help](https://forum.dynamobim.com/t/ask-for-help/101847)
**Author:** [@abdelkader.omar](https://forum.dynamobim.com/u/abdelkader.omar)\ **Replies:** 7\ **Last updated:** [June 12, 2024, 6:57pm UTC](https://forum.dynamobim.com/t/ask-for-help/101847 "2024-06-12T18:57:08Z")
when I run my dynamo, an error is showed as “Warning: Internal error, please report: Dereferencing a non-pointer” I ask for the possible issues for this problem and how I can solve it. --- ## [What are the Task that can be Automated, for a Revit Modeling Company (Not Design based company)](https://forum.dynamobim.com/t/what-are-the-task-that-can-be-automated-for-a-revit-modeling-company-not-design-based-company/68455)
**Author:** [@honeyjain619](https://forum.dynamobim.com/u/honeyjain619)\ **Replies:** 5\ **Last updated:** [June 12, 2024, 7:30am UTC](https://forum.dynamobim.com/t/what-are-the-task-that-can-be-automated-for-a-revit-modeling-company-not-design-based-company/68455 "2024-06-12T07:30:08Z")
Hello Friends, A Modeling company (CAD to Revit) asking me, what are the steps / Task can be automated using dynamo. So i have told them few task that can be automated as per my knowledge and understanding. But lot of … --- ## [Zero Touch Debugging](https://forum.dynamobim.com/t/zero-touch-debugging/14200)
**Author:** [@mastjaso](https://forum.dynamobim.com/u/mastjaso)\ **Replies:** 6\ **Last updated:** [June 5, 2024, 2:37am UTC](https://forum.dynamobim.com/t/zero-touch-debugging/14200 "2024-06-05T02:37:01Z")
Hey guys, I’ve been getting started with Zero Touch node development but I wanted to know if there’s a better way to debug that I’m missing: As I understand it now, every single time you want to load in a new version o… --- ## [Read Excel file node Opens Excel file](https://forum.dynamobim.com/t/read-excel-file-node-opens-excel-file/7813)
**Author:** [@Raja](https://forum.dynamobim.com/u/Raja)\ **Replies:** 24\ **Last updated:** [May 23, 2024, 8:22am UTC](https://forum.dynamobim.com/t/read-excel-file-node-opens-excel-file/7813 "2024-05-23T08:22:08Z")
Hello All, Whenever I try to run the “Read.Excel” node in dynamo it opens the excel file along with it. Is there a way to stop opening the excel file? --- ## [Difference between Parameters from an Element and an ElementType](https://forum.dynamobim.com/t/difference-between-parameters-from-an-element-and-an-elementtype/100818)
**Author:** [@t361666QRPEF](https://forum.dynamobim.com/u/t361666QRPEF)\ **Replies:** 2\ **Last updated:** [May 9, 2024, 4:50am UTC](https://forum.dynamobim.com/t/difference-between-parameters-from-an-element-and-an-elementtype/100818 "2024-05-09T04:50:26Z")
Please tell me the difference between these two?? --- ## [Should I learn Python 2.x or Python 3.x?](https://forum.dynamobim.com/t/should-i-learn-python-2-x-or-python-3-x/15266)
**Author:** [@Angman](https://forum.dynamobim.com/u/Angman)\ **Replies:** 9\ **Last updated:** [April 23, 2024, 12:19pm UTC](https://forum.dynamobim.com/t/should-i-learn-python-2-x-or-python-3-x/15266 "2024-04-23T12:19:24Z")
Hello. This is my first post so I apologize if I am in the wrong place. This is also a very basic question so please bear with me. I am a new user of dynamo with no programming experience whatsoever. I would like to s… --- ## [How to get help on the Dynamo forums](https://forum.dynamobim.com/t/how-to-get-help-on-the-dynamo-forums/4677)
**Author:** [@Dimitar\_Venkov](https://forum.dynamobim.com/u/Dimitar_Venkov)\ **Replies:** 3\ **Last updated:** [May 16, 2017, 3:53pm UTC](https://forum.dynamobim.com/t/how-to-get-help-on-the-dynamo-forums/4677 "2017-05-16T15:53:54Z")
One of the main goals of the Dynamo community is to help others. One way to do that is by answering your questions. But to get the right answer, you’ll first have to ask your question in the right way. Although people ar… [Next page](https://forum.dynamobim.com/c/faq/8.md?page=1)